A251064 Number of (n+1) X (7+1) 0..2 arrays with no 2 X 2 subblock having x11-x00 less than x10-x01.
112373, 6678657, 432850109, 30334449677, 2179252808041, 158459225199843, 11583623256480548, 849126733873227941, 62330147178086289818, 4578812877202662645937, 336496570208098704484079
Offset: 1
Keywords
Examples
Some solutions for n=1 ..0..0..0..1..2..2..1..2....1..1..0..0..0..0..1..1....1..2..0..2..2..2..1..1 ..1..1..1..0..0..0..2..2....0..0..1..2..2..2..2..2....0..0..2..1..1..1..2..2
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Crossrefs
Cf. A251065.
Comments